>>942027>>942173The idea is to have a full set of dry sleeping clothes. Generally, people will just wear a clean, dry base layer to keep body oils out of their sleeping bag and to further insulate them against drafts that come into the bag from the face hole.
Thinking you need to be naked in sleeping bags is a wives' tale propagated by non-enthusiast campers who bring incorrectly-rated sleeping bags and end up sweating in them regardless of what they wear due to too much insulation in the bag. That said, you shouldn't need to bring such a lightweight bag that you absolutely need to wear your clothes just to be warm (some super ultralight hikers do, but it's easy to go wrong with such systems).
>b-but I was in my country's conscripted military/brigade and we all learned the hard way to sleep nakedBeing a grunt does not make you an expert on sleeping bags. You were doing it wrong, simple as that.
>b-but granpappy always tole me to do it this way so that's why. period.I find that most people who believe that you should be naked in a sleeping bag really don't have a clue why because they've never thought about it.
Here is a short list of negatives:
-If you sweat at night, your sweat is going straight into your insulation if you're naked. Goose down doesn't loft as much when it's covered in body oils, so direct skin contact with the bag should be avoided
-You won't sweat, either way, if your bag is correctly rated to the expected temperatures or you properly use the zipper as a vent (easier to do if you are clothed)
-If you shift around at night, a little air will come into the bag from the face hole or zipper, chilling you and interrupting your sleep. Wearing a base layer keeps you comfortable when this inevitably occurs.
-When you get up to pee, or to tighten a guy line on your tent, you will be reasonably well insulated for the short trip outside. If you're totally naked, you could start shivering, costing you energy and making it harder to get back to sleep.
